Tadalafil, the active ingredient in Cialis, works by relaxing blood vessels in the penis, allowing for increased blood flow and facilitating an erection. This effect is achieved by inhibiting a specific enzyme, phosphodiesterase-5 (PDE5).
Unlike sildenafil (Viagra), which typically acts within 30-60 minutes, Tadalafil’s effects can last up to 36 hours, earning it the nickname “the weekend pill”. This extended duration is a key differentiator.
Dosage and Administration
Tadalafil is usually taken as needed, approximately 30 minutes before sexual activity. However, your doctor will determine the appropriate dosage based on your individual health needs and medical history. Common dosages range from 5mg to 20mg. Always follow your doctor’s instructions precisely.
Potential Side Effects
Common side effects include headache, flushing, nasal congestion, and indigestion. These are usually mild and temporary. More serious side effects are rare but require immediate medical attention. Consult your doctor if you experience any concerning symptoms, including vision changes, hearing loss, or chest pain.
Important Considerations
Tadalafil interacts with certain medications, particularly nitrates. Never take Tadalafil if you are using nitrates for heart conditions. Also, inform your doctor of all medications you are currently taking, including over-the-counter drugs and supplements. Discuss any pre-existing health conditions, such as heart disease or liver problems. Tadalafil is not suitable for everyone, and your doctor will assess your suitability for this medication.
